{
  "cveId": "CVE-2026-77310",
  "url": "https://patchblox.com/security/cve/CVE-2026-77310",
  "summary": "CVE-2026-77310 is fixed in jackson-databind on 1 platform by ALAS2023-2026-2081 (version 2.21.5-2.amzn2023.0.1), released August 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "jackson-databind: Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities:\nCVE-2026-77310:\n\tjackson-...",
  "description": "Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities:\nCVE-2026-77310:\n\tjackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName() on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.\n\nCVE-2026-59889:\n\tjackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.\n\nCVE-2026-59888:\n\tjackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.15.0 until 2.18.8, 2.21.4, and 3.1.4, Java Records using a PropertyNamingStrategy can bypass @JsonIgnore because POJOPropertiesCollector._removeUnwantedIgnorals() records an ignored component under its original implicit name before _renameUsing() applies the naming strategy, allowing the renamed JSON key to be assigned to the Record constructor parameter. This issue is fixed in versions 2.18.8, 2.21.4, and 3.1.4.",
  "published": "2026-08-31T09:00:00Z",
  "severity": "moderate",
  "epss": 0.00313,
  "epssPercentile": 0.24358,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "jackson-databind",
      "release": "amzn 2023",
      "fixedVersion": "2.21.5-2.amzn2023.0.1",
      "fix": "ALAS2023-2026-2081",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2081",
      "released": "2026-08-31T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}